Apparatus for screening and concentrating ores



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W. GLANGY. APPARATUS FOR SCREENING AND GONGENTRATING DRES- Patented Nov. 7

W12 JVESSES:

(No Model.)

W. OLANOY. APPARATUS FOR SCREENING AND GONOBNTRATING ORES.

No; 508,282. Patented Nov. 7, 1893.

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3 Sheets-Sheet 3.

(No Model.)

W. OLANO'Y. APPARATUS FOR SCREENING AND GONGENTRATING 0315s,

Patented Nov. 7

UNITED STATES PATENT Fries.

WILLIAM OLANCY, OF ANAOONDA, MONTANA.

APPARATUS FOR SCREENING AND CONCENTRATING 'ORES.

SPECIFICATION forming partof Letters area No. 508,282, dated November '7, 1893.

Applicationfiledl'ebrnar'y15,1893. SerialNo.462,439. ((Nomodel.)

T0 aZZ whom it may concern.-

Be it known that I, WILLIAM OLANOY, a citizen of the United States, and'a resident of Anaconda, in the county of Deer Lodge and State of Montana, have invented certain new and useful Improvements in Apparatus for Screening and Concentrating Ores; and I do hereby declare that the following is 'a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates to improvements in machines principally designed for screening and concentrating ores, although it may be employed for all purposes which screening machines are generally used for, and is intended as an improvement upon the invention for which Letters Patent-were granted to me on May 31, 1892, No. 476,035.

The object of theinvention is to provide an improved screening apparatusin which twigs, leaves and other rubbish which are usually presentwith the ore may be separated therefrom and removed from the machine in an expeditious and efficient manner, thereby preventing the same from being carried over to the settling tanks.

The invention consists in the novel construction and combination of parts hereinafter fully described and claimed, 7

In the accompanying drawings, Figure 1 is a side elevation of a machine constructed in accordance with my invention; Fig. 2 is an end view of the same. Fig. 3 is asimilar view machine. Near the lower ends of these up rights are brackets 2 in which are journaled eccentric pinions 3, which mesh with cogged rims 4, of a drum 5. This drum comprises the cast iron heads 6, with which the rims 4 are made integral and annular flanges 7, which form guides fortheeccentricpinions. It will be noticed that these pinions are'so arranged "that as the drum is rotated as hereinafterdescribed, a rocking motion will be communt: cated thereto. The heads 6 are connected together by V shaped horizontal ribs 8, and are provided with a covering 9 of wire gauze or perforated metal.

means of plates 6?.

Secured to theseplates is a tapering trough;

'10, one end being considerably larger than the other. This trough extends the ull length: of'the drums and at its upper side 1s pro-.

vided with a slot or opening 12, extending from end to end thereof. Inthe interior of the drum at one side is a segmental shield 13, consisting of a curved metal plate, the upper end of which terminates in close proximlty to the slot in the trough. Located in the drum is afeed flume 14, consisting of a horizontal board or plate extending from end to end thereof, and provided With a diagonal plate 15, of wire gauze or perforatedmetal of coarse mesh.

' Securedto'the uprights 1, near their upper ends are brackets 16, in which are located movable journal boxes 17, in which 1s ournaled a fan shaft 18. journal boxes and the upper ends of the brackets are springs 19, against which bear screw rods 20, by which their tension may be regulated. Connected with a horizontal rod 21, 1s a fan casing 22, having open ended heads 23, through which the shaft 18 of the fan 24 passes; This shaft is made in two parts or provided with an extension 18, connected together at 18 by a universal-joint. This extension is connected with a fan casmg 25, having a fan 27, and its outer end 1s ournaled in a slot in the upper end of an uprlght or standard 28. The object of this slot, the vertically movable journal and the universal joint connection of the, two part shaft is to permit the fan casing and fan shaft to have The central openings-in. the heads at the lower portions are closedby.

Intermediate of the with any suitable motor, and a pulley 35, connected by a belt 36 with a pulley 37 on the shaft 18. The shaft 32 is connected with a shaft 38, journaled in the vertically movable bearing 17 of one of the brackets 16 by means of a spring 39. This shaft 38, carries a pinion 42, which meshes with the cogged rims 4:, of drum 5. By means of the spring connection between shafts 32 and 38, the latter can move vertically without correspondingly moving shaft 32.

The bearing 17 at the opposite end of the machine carries a shaft provided with a pinion 42, which meshes with the cogs on the drum at that end.

The operation will be readily understood. The material to be screened is fed to the flume, and the twigs, leaves and other rubbish will be thrown toward the segmental 1 screen and will be caught by the ribs of the drum and carried around and delivered into the trough at the upper end of the machine.

Having thus described my invention, what eating with the feed flume, substantially as described.

2. In a screening apparatus, the combination with the rotatable drum comprising the heads, the ribs connecting the same, and the reticulated covering, of the tapering trough having a slot or opening in its upper side, the

ing with cogs on the rim of the drum and the coiled spring connecting said shafts, substantially as described.

3. In a screening apparatus, the combination with the uprights, the drum and means for rotating the same, of the eccentric pinions journaled in said uprights and the cogs on the drum meshing therewith, substantially as described.

4. In a screening apparatus the combination with the rotatable drum of the feed Home comprising the horizontal board or plate and the diagonal plate of wire gauze, substantially as described.

In testimony that I claim the foregoing as my own I have hereunto aflixed my signature in presence of two witnesses.

WILLIAM CLANOY.

Witnesses:

J AMES OHARA, THOMAS MAXWELL. 

